Global Patent Index - EP 2908449 A1

EP 2908449 A1 20150819 - Device for transmitting and/or modulating optical signals with passive phase shifters

Title (en)

Device for transmitting and/or modulating optical signals with passive phase shifters

Title (de)

Vorrichtung zum Senden und/oder Modulieren optischer Signale mit passiven Phasenschiebern

Title (fr)

Dispositif pour transmettre et/ou moduler des signaux optiques à l'aide de déphaseurs passifs

Publication

EP 2908449 A1 20150819 (EN)

Application

EP 14305227 A 20140218

Priority

EP 14305227 A 20140218

Abstract (en)

A device (1) is intended for transmitting and/or modulating in-phase and quadrature optical signals generated by an optical source (2). This device (1) comprises modulators (4) each arranged for modulating intensity of optical signals depending on commands, and at least three main multi-mode interferometers (3 j ) set in series and arranged for transforming in combination a received optical signal with an initial phase state into a final optical signal with a final phase state differing from this initial phase state by an accumulated phase shift chosen from a group comprising 0, À/2, À and 3À/2 and depending from the intensity modulations carried out by the modulators (4).

IPC 8 full level

H04B 10/50 (2013.01); H04B 10/54 (2013.01); H04B 10/556 (2013.01)

CPC (source: EP US)

G02F 1/0018 (2013.01 - US); G02F 1/01708 (2013.01 - EP US); G02F 1/21 (2013.01 - EP US); G02F 1/2257 (2013.01 - EP US); H04B 10/505 (2013.01 - EP US); H04B 10/541 (2013.01 - EP US); H04B 10/5561 (2013.01 - EP US); B82Y 20/00 (2013.01 - US); G02F 1/212 (2021.01 - US); Y10S 977/755 (2013.01 - EP US)

Citation (search report)

  • [I] US 2009169148 A1 20090702 - DOERR CHRISTOPHER RICHARD [US], et al
  • [A] EP 2141833 A1 20100106 - NOKIA SIEMENS NETWORKS OY [FI]
  • [A] CINCOTTI GABRIELLA: "New planar architectures for optical digital modulators", 2012 INTERNATIONAL CONFERENCE ON PHOTONICS IN SWITCHING (PS), SEE, 11 September 2012 (2012-09-11), pages 1 - 3, XP032487557

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 2908449 A1 20150819; US 2015234253 A1 20150820; US 9547214 B2 20170117

DOCDB simple family (application)

EP 14305227 A 20140218; US 201514624090 A 20150217